Temporary binder



W. FELDMANN.

TEMPORARY BINDER.

APPLICATION FILED JULY 17.1919.

Patented Apr. 20, 1920.

(a1 W I 9 77A 6 William Fbldmann.

q m afm m. 0643 WILLIAM FELDMANN, OF CHICAGO, ILLINOIS.

TEMPORARY BINDER.

Specification of Letters Patent.

Patented Apr. 20, 1920.

Application filed. July 17, 1919. Serial No. 311,468.

To all whom it may concern:

Be it known that I, WILLIAM FELDMANN, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented new and useful Improvements in Temporary Binders, of which thefollowing is a specification. I

This invention relates to devices for temporarily binding loose sheets,and more particularly to devices of this kind having a base stripcarrying. impaling pins for the sheets, and a follower carried by saidnns. 1 The invention has for its object to provide a novel and improvedmeans for locking the follower to the pins, and to this end it consistsin a combination and arrangement of parts to be hereinafter describedand claimed.

In order that the invention may be better understood, reference is hadto the accompanying drawing forming a part of thls specification.

In the drawing,

. Figure 1 is a perspective view of the device- Fig. 2 is a sectionaldetail of one of the locking devices;

Fig. 3 is a perspective view of a support for an operating lever;

Fig. 4 is a plan view of a spring locking strip, and

5 is a perspective view of the operating lever.

Referring specifically to the drawing 5 denotes a base strip and 6 afollower between which the sheets or leaves are to be clamped. The basestrip carries two upstanding pins 7 on which the sheets or leaves areimpaled, and the follower is slidably mounted on these pins and carriesmeans whereby it may be locked to the latter.

On top of the follower 6, adjacent to each pin 7 is riveted or otherwisesecured a metal plate 8 having intermediate its ends an upward, archedbend 9. On one side of this bend, the plate has an elongated opening 10through which the pin 7 passes, and in line with this opening, thefollower has a hole 11 through which the pin passes. On the other sideof the bend or arch 9, the plate 8 has upstanding marginal flanges 8 atthe sides and end, and on top of the plate, at this end, and inside theflanges, is secured a spring locking strip 12. This strip is riveted atone end, as shown at 12 or otherwise fastened, to the plate 8, and itsother end is free and has a notch 13 in which the pin 7 is adapted toseat. The locking strip is of such length that it extends with aninclination between the pin 7 and the plate 8, and it is resilient andhas a normal tendency to swing downward toward said plate. It willtherefore be evident that the notched free end of the strip 12 pressesagainst the pin 7 and frictionally engages the same. A locking strip isprovided for each pin 7, and the follower 6 is securely locked therebyto the pins.

To release the locking strips 12 from the pins 7 it is necessary to prythe former away from the latter, which is done by a rocking lever in theform of a link having one end 14 mounted under the arch 9 said end beingprovided with an outstanding lifting finger or lug 15 which is oppositea slot 15 in the plate 8 and continued through the arch. The strip 12extends across the arch, and when the link is swung upwardly the finger15 presses against the under side of the strip 12 and forces it upwardlyclear of the pin 7, whereupon the follower is left free to slide on thepin.

The sides 16 of the link have a spread to seat alongside the plate 8when the link is down and the finger 15 is retracted, and the free end17 of the link is then opposite and outside the flanged end of theplate, said end of the link having a suificient upward bend to enablethe operators finger to be inserted thereunder for swinging the link.

It will be noted that the slot l5 extends only partly through the arch 9so that it may serve as a stop to limit the upward swing of the link.The finger 15 is parallel to the plane of the link, and when the fingeris at the limit of its lifting stroke it is perpendicular to thefollower 6, and as the strip 12 is now pressing against the top eX-tremity of the finger and holding the finger pressed against the innerend of the slot in the arch, the link is held in erect and releaseposition by the strip, and it remains in this position until the link isagain forced clown- Ward to withdraw the finger from the strip. Thestrips 12 are thus automatically locked in release position, leavingboth hands of the operator free to remove the follower 6 from the pins 7and to replace the same after the desired sheets or leaves have beenplaced on the pins. The device is therefore easily manipulated, and thesheets or leaves can be readily placed on the pins or removed therefrom.

The openings 10 are made in elongated form in order to adapt the plates8 and the strips 12 without change to pins 70f greater diameter. Whilesaid openings would suit the purpose if made of even width, it ispreferred that they be made with an outward taper, as shown, so as toavoid the removal of stock, and the consequent weakening of the plate 8,at a site Where only the minimum width of the opening is required.

I claim:

1. In a temporary binder, a base, an impaling pin rising from the base,a follower slidably mounted on the pin, a plate mounted on top of thefollower and having an arched portion, a spring locking strip secured tothe plate and engageable with the pin for locking the follower thereby,and a lever for disengaging the locking strip, said lever having arotatable transverse portion journaled beneath the arch and providedwith a lifting finger engageable with the locking strip, the aforesaidplate and the arch having a slot in which the finger works, 1

' slidably mounted on the pin, a platemounted on top of they followerand having an arched portion, a spring locking strip secured to theplate and engageable with the pin for locking the follower thereby, anda lever for disengaging the locking strip, said lever having a rotatabletransverse portion journaled beneath the arch and provided with alifting finger engageable with the locking strip, the aforesaid plateand the arch having a slot in which the finger works, one end of theslot operating as a stop to limit the swing of the finger in a directionto releasethe spring strip, and the finger at the limit of such swingbeing held pressed against said stop by the spring strip.

In testimony whereof I aflix my signature.

WILLIAM FELDMANN.

